https://www.openlearning.com/u..../cowanlamm-smlxm1/bl
https://zenwriting.net/agendah....yena6/choosing-cat-f
It is possible to install the cat flap onto a upvc panel or a double glazing sealed unit. However, the best option would be to install an entirely new glass pane that has a hole that is already made. Read the instructions that should be provided with your cat flap kit, and follow them closely. Make sure that the shape you have drawn (be it a square or circle) is accurately drawn on your template drawing. Safety A microchip-activa